| Fenaroli's Handbook of Flavor Ingredients, Second Edition (1975), vol. 1, pp. 307-308, 328-330, 405-406, vol. 2, pp. 198 & 330. |
| Abstract No. 1262105, WPI Acc No: 77-18280 Y/11 for DE 2537762. |
| Abstract No. 1933708, WPI Acc No: 80-29130 C/16 for U.S. Pat. No. 4,197,328 et al. |
| Abstract No. 30988C/17 for U.S. Pat. No. 4,198,393. |
| Abstract No. 481494, WPI Acc No: 82-58927 E/28 for SU 863633. |
| Abstract No. 521750, WPI Acc No: 82-99204 E/46 for SU 897844. |
| Abstract No. 637438, WPI Acc No. 83-26964 K/11 for SU 926007. |
| Abstract No. 679842, WPI Acc No: 83-705590/27 for U.S. Pat. No. 4,389,421. |
| Abstract No. 84-005657/01 for U.S. Pat. No. 4,420,472. |
| Abstract No. 978216, WPI Acc No: 84-153373/25 for DE 3246069. |
| Abstract No. 84-164872/26 for U.S. Pat. No. 4,454,111. |
| Abstract No. 1366382, WPI Acc No: 85-182293/30 for SU 1030407. |
| Abstract No. 1402182, WPI Acc No: 85-218083/36 for U.S. Pat. No. 4,626,427. |